The velocity-time graph below represents the motion of a particle along a straight line. velocity/m s 20 10 -10 -20 NL 2 A C Which of the following is true? I 12 I only I and II only The particle's velocity is momentarily zero at t = 5 s. II The particle comes back to its starting point in 12 s. III The particle travels in the opposite direction between 1= 5 s and t= 12 s. B D 12 time/s II only I, II, and III ( )

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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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No.22,No.23 and No.24
The diagram below shows a series of
photographs of a ball rolling with constant
velocity.
The camera was capturing images at a constant
rate of 20 per second. What was the speed of
the ball?
A 1.0 m s-¹
C 2.5 m s
velocity/m s
4
20
22. The velocity-time graph below represents the
motion of a particle along a straight line.
10-
-10-
-20-
11
I
2
A
C
O
4
2.0 m
Which of the following is true?
I
B 2.0 m s-¹
(D) 10.0 m s™¹
I only
I and II only
10 12
velocity
The particle's velocity is momentarily zero
at t = 5 s.
14 time/s
The particle comes back to its starting point
in 12 s.
III The particle travels in the opposite direction
between t = 5s and t= 12 s.
B II only
D I, II, and III
)
23. The graph of velocity against time for a moving
object is shown.
time
( )
Which of the following is the corresponding
graph of displacement against time?
A displacement
B
C
0
displacement.
displacement
IN
D displacement.
0
L
time
C velocity
Earth
time
24. When someone on Earth drops a rock, it
accelerates at about 10 m s-2. When a rock is
dropped on Mars, the rock accelerates at about
2.0 m s². Which diagram shows the velocity-
time graphs for a rock dropped on Earth and
dropped on Mars?
velocity
A velocity
Mars
time
time
B
time
Earth
D
Mars
→
time
velocity Earth
Earth
Mars
time
Mars
time
( )
Transcribed Image Text:The diagram below shows a series of photographs of a ball rolling with constant velocity. The camera was capturing images at a constant rate of 20 per second. What was the speed of the ball? A 1.0 m s-¹ C 2.5 m s velocity/m s 4 20 22. The velocity-time graph below represents the motion of a particle along a straight line. 10- -10- -20- 11 I 2 A C O 4 2.0 m Which of the following is true? I B 2.0 m s-¹ (D) 10.0 m s™¹ I only I and II only 10 12 velocity The particle's velocity is momentarily zero at t = 5 s. 14 time/s The particle comes back to its starting point in 12 s. III The particle travels in the opposite direction between t = 5s and t= 12 s. B II only D I, II, and III ) 23. The graph of velocity against time for a moving object is shown. time ( ) Which of the following is the corresponding graph of displacement against time? A displacement B C 0 displacement. displacement IN D displacement. 0 L time C velocity Earth time 24. When someone on Earth drops a rock, it accelerates at about 10 m s-2. When a rock is dropped on Mars, the rock accelerates at about 2.0 m s². Which diagram shows the velocity- time graphs for a rock dropped on Earth and dropped on Mars? velocity A velocity Mars time time B time Earth D Mars → time velocity Earth Earth Mars time Mars time ( )
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